Every dimension belongs to an object and a drawing. Original room numbers, object marks, printed values and source regions stay together—even when the answer is unresolved.
464 of 464 photographs have extraction records, containing 27,517 properties. Initial image review is not exhaustive extraction: 0 photographs have passed the full-region check. 66 numbered sheets are reconciled. Modeling and architectural registration are separate work; these counts do not establish a complete building.
Download the structured register (JSON)Object: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Printed values, calculations, image traces and observed counts are different kinds of evidence. “Verified” applies to the specific reading—not to the whole room or model.
7 in
Local W-6 mail-chute detail only.
Drawing notation: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
12 in
Local W-6 mail-chute detail only.
Drawing notation: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
2 in
Local W-6 mail-chute detail only.
Drawing notation: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
2 in
Local W-6 mail-chute detail only.
Drawing notation: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
10.5 in
Printed value retained as a local witness; endpoints are unresolved and it cannot place the detail.
Drawing notation: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
1 count
FROM 1ST FLOOR TO 5TH INCLUSIVE.
Drawing notation: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
5 count
FROM 1ST FLOOR TO 5TH INCLUSIVE.
Drawing notation: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
Column identifier, not a measured count or accepted placement.
Drawing notation: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
Column identifier, not a measured count or accepted placement.
Drawing notation: 1 1/2 SCALE DETAIL OF MAIL CHUTE AT COL. 45 & 50 / FROM 1ST FLOOR TO 5TH INCLUSIVE.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
The column references do not establish the missing W-6-to-building transform.
Decoded raw raster is upright; the JPEG EXIF Rotate 90 CW tag is explicitly ignored for this source package.
Contractor scope applies to rough opening, not finished clear chute aperture; reused7/12in existing dimension IDs. Source-local extraction only; no accepted physical geometry, installation count or world transform.
Drawing notation: 7" x12" ROUGH OPENING BY GENERAL CONTRACTOR
Contractor scope applies to rough opening, not finished clear chute aperture; reused7/12in existing dimension IDs. Source-local extraction only; no accepted physical geometry, installation count or world transform.
Calculated from: f4-w6-mail-chute-rough-opening-width, f4-w6-mail-chute-rough-opening-depth
Both ends lie on dashed outer reference lines; exact rough/masonry/angle outside-face equivalence remains unreviewed. Do not equate this with7-inch opening. Source-local extraction only; no accepted physical geometry, installation count or world transform.
Drawing notation: [10½-inch witness spans dashed side reference lines beyond chute rectangle]
Both ends lie on dashed outer reference lines; exact rough/masonry/angle outside-face equivalence remains unreviewed. Do not equate this with7-inch opening. Source-local extraction only; no accepted physical geometry, installation count or world transform.
Calculated from: f4-w6-mail-chute-top-witness
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.